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Lightroom $4K iMac VS $4K PC performance test

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Re: Lightroom $4K iMac VS $4K PC performance test

#11

A lot of that iMac's cost is its retina display, and you didn't bother buying a retina display for the PC. Running a speed test is silly, there are already major differences in the build. To make this remotely more scientific, you'd either need to buy a 4k monitor for the PC, or use a Mac Pro and just take the monitor out of the equation.

But the Mac pro hasn't been updated in years. The gpu is old, and this is mostly a gpu test.

Re: Lightroom $4K iMac VS $4K PC performance test

#12

4000USD is a lot of money. That seems like an odd setup. Not having ever wanted to buy a machine for that amount of cash, I'd expect to do better with multi-socket systems. Anyone care to chime in? I struggled to spend over 1K GBP with my latest machine. (I think 'Extreme Edition' is basically like buying the S version of a car, mind). i7-5820K, 64GB ram. One thing that does stick out is an odd monitor comparison. Th…

In their situation I think processing time is the bottleneck or at least a major factor. They probably see every penny back in productivity gains.

I'm sure. Are Xeon systems just super expensive, though? Is 8 cores the best you can do for 4K?

Re: Lightroom $4K iMac VS $4K PC performance test

#13

A lot of that iMac's cost is its retina display, and you didn't bother buying a retina display for the PC. Running a speed test is silly, there are already major differences in the build. To make this remotely more scientific, you'd either need to buy a 4k monitor for the PC, or use a Mac Pro and just take the monitor out of the equation.

That's true. They should have gotten a 5k screen with 5120‑by‑2880 resolution for the PC like the Mac. This Dell costs 2000 which would have reduced the available for the PC components. On the other hand if you don't care for such resolution the PC may be the better choice.

Re: Lightroom $4K iMac VS $4K PC performance test

#14

4000USD is a lot of money. That seems like an odd setup. Not having ever wanted to buy a machine for that amount of cash, I'd expect to do better with multi-socket systems. Anyone care to chime in? I struggled to spend over 1K GBP with my latest machine. (I think 'Extreme Edition' is basically like buying the S version of a car, mind). i7-5820K, 64GB ram. One thing that does stick out is an odd monitor comparison. Th…

Lightroom has a single core CPU bottleneck, multisocket is pointless for the this use case.

The rest is on the GPU

Re: Lightroom $4K iMac VS $4K PC performance test

#15

4000USD is a lot of money. That seems like an odd setup. Not having ever wanted to buy a machine for that amount of cash, I'd expect to do better with multi-socket systems. Anyone care to chime in? I struggled to spend over 1K GBP with my latest machine. (I think 'Extreme Edition' is basically like buying the S version of a car, mind). i7-5820K, 64GB ram. One thing that does stick out is an odd monitor comparison. Th…

Lightroom has a single core CPU bottleneck, multisocket is pointless for the this use case. The rest is on the GPU

I suspected that, but what's with the monstrous 8 core thing then? Couldn't you equally overclock a 4 core CPU and save hundreds of dollars?

Basically, is the whole article just nonsense? :)

Re: Lightroom $4K iMac VS $4K PC performance test

#16

I'm not a Apple fan, but I find most of these tests are counting seconds and then extrapolating that to actual work time, which I don't think actually maps as well as the author thinks. The exception to this is 'smart previews' test which shows a 6.5 minute difference. I've asked the creator of fileloupe ( http://www.fileloupe.com/ ) if his app would improve the performance of this one test. I know nothing about phot…

Right. His mapping it 1-to-1 implies that most of the time is bound by computer tasks. So there would be almost no viewing/decision/input task time, just some rapid input, then walking away from the computer.

This is so often the flaw with business upgrades. Its much easier to blame it on old kit than to struggle through improving workflow.

Re: Lightroom $4K iMac VS $4K PC performance test

#17
post #4

These comparisons are silly. Now imagine it's a BMW vs someone's project car both with the same $$$ invested. Yeah, the project car will probably smoke it. But not everyone wants a project car.

I agree, perhaps it would be better to compare the iMac's performance against a $4,000 Dell Precision workstation.
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